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INTEGRAL observations of SS433, a supercritically accreting microquasar with hard spectrum

A. M. Cherepashchuk·R. A. Sunyaev·E. V. Seifina·I. E. Panchenko·S. V. Molkov·K. A. Postnov
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Abstract

Observations of SS433 by INTEGRAL carried out in March -- May 2003 are presented. SS433 is evidently detected on the INTEGRAL images of the corresponding sky region in the energy bands 25-50 and 50-100 keV. The precessional variability of the hard X-ray flux is clearly seen. The X-ray eclipse caused by the binary orbital motion is also detected. A possible origin of the hard continuum is briefly discussed.

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A. M. Cherepashchuk, R. A. Sunyaev, E. V. Seifina, I. E. Panchenko, S. V. Molkov, K. A. Postnov. 2003-09-04. INTEGRAL observations of SS433, a supercritically accreting microquasar with hard spectrum. https://doi.org/10.1051/0004-6361%3A20031323

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